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Motor Oil Test and Comparison

AMSOIL vs. Mobil 1

409,000-Miles Without An Oil Change

AMSOIL Excels in API Sequence IIIF Performance Test

Motor Oil Performance Tests & Comparisons

Temperature Extremes Call For Superior Motor Oils

Why Harley-Davidson Owners Choose AMSOIL

Synthetic Motorcycle Oil & Harley-Davidson Warranty Issues

AMSOIL Synthetic Gear Lube Outperforms Valvoline Gear Lube

8.2% More MPG With AMSOIL Synthetic Lubricants

AMSOIL Proves Superior In Clark County Field Test

AMSOIL Series 3000 Synthetic 5W-30 Heavy Duty Diesel Oil is Correct Choice for Jeff Foster Trucking

AMSOIL Products Improve Efficiency and Reduce Operating Costs for Gerlach Trucking

What is the Noack Volatility Test?

What is the Four-Ball Wear Test?

What is TBN?


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New Diesel Oil Specifications Are Coming

Fuel Economy Will Be A Major Factor In The New Requirements.

Dan Peterson, Vice President, AMSOIL Technical Development

Mark Nyholm
Technical Product Manager,
Heavy Duty

Fuel economy has been the topic of discussion in many Tech Talks over the past four years. Federal CAFE (Corporate Average Fuel Economy) regulations aimed at improving fuel economy and reducing vehicle emissions in passenger cars and light-duty trucks have challenged automakers to improve their offerings or face fines. And original equipment manufacturers (OEMs) are looking to oil formulators and manufacturers to help them wring out every last tenth of a mile per gallon in their vehicles to avoid CAFE charges.

But maybe you haven't been thinking about fuel economy lately. Just a few weeks ago, the price for a gallon of gasoline here in Superior, Wis. dropped to $1.85. At that price, what do a couple extra miles per gallon matter? I'm not an oil futures analyst, but I doubt we'll see fuel prices remaining around $2 a gallon for years to come, so fuel economy will remain a subject of continual conversation.

While much of the CAFE attention has been directed at the passenger-car industry, on- and off-road big rigs have seemingly escaped the same scrutiny. But that is soon going to change, as a new proposed motor oil category (currently called PC-11) for the heavy-duty vehicle industry is in the works. PC-11 is being spearheaded by the Engine Manufacturers Association (EMA) to address the many changes taking place in the heavy-duty industry through a new performance category intended to supersede API CJ-4.

Whereas API CJ-4 focused primarily on reducing diesel emissions to meet increasingly strict pollution limits, the new category will, for the first time, include fuel economy regulations. That means millions of vehicles equipped with large diesel engines - from over-the-road tractor trailers to off-road farm and construction equipment - will be facing tougher mpg requirements. Vehicle and fleet owners will need advice to understand how the new heavy-duty motor oil category will affect their equipment. That's good news for AMSOIL Dealers.

New challenges await engine designers and oil formulators to create higher-performing products that increase efficiency without jeopardizing engine protection. In the passenger-car world, the trend is for lower-viscosity oils as they provide less resistance and require less energy to be pumped through an engine's network of parts. The main concern with these thinner oils, however, is that they are thinner! Yet, they are still tasked with providing robust engine protection under extremely demanding operating conditions. Imagine a low-viscosity oil circulating through a multi-ton piece of highway construction equipment as it rolls over rough terrain for 10-12 hours a day for months on end. That low-viscosity oil better be good.

Lower-viscosity oils will increasingly be recommended by equipment manufacturers for new engines. Alternatively, older engines were designed to run on thicker oils. Therefore, it is anticipated that the PC-11 category will be subdivided into PC-11A and PC-11 B. The former will fall within the viscosity limits set currently and will also be backward-compatible with older engines. PC-11 B oils will include lower-viscosity oils than those under the current CJ-4 classification and will be designed for use in newer engines only.

PC-11A oils may be designated API CK-4, the next letter after CJ-4, and will have the same viscosity limits for diesel oils we all use today and will be backward-compatible with older engines.

The PC-11 B diesel oils will be called something different enough to reduce confusion and misapplication, such as API FA-4 or FA-1, and will cover the new lower-viscosity category. These new oils will provide the same wear protection and will be required to pass the same tests as PC-11A, but will only be recommended in newer engines for improved fuel economy. The main difference between PC-11A and PC-11B oils will be HTHS (High-Temperature/High-Shear) viscosity, which tracks better with fuel economy than straight viscosity measurements.

It is expected that initial licensing for the new PC-11 oils will occur sometime between late 2016 and early 2017. The heavy-duty diesel market is a giant one - literally - and the new PC-11 regulations will open many doors for AMSOIL Dealers to serve this market by providing the industry's best lubricants and service. Published, AMSOIL Magazine 05/15.

AMSOIL Signature Series Synthetic Motor Oil

AMSOIL Signature Series Synthetic Motor Oil

AMSOIL Signature Series Synthetic Motor Oils are formulated to meet the latest API SN Resource Conserving and ILSAC GF-5 industry specifications. AMSOIL Signature Series Oils include 0W-20, 0W-30, 5W-30 and 10W-30 and represent the very best motor oils AMSOIL has to offer, allowing motorists to take advantage of maximum extended drain intervals. AMSOIL Signature Series Synthetic Motor Oils are recommended for drain intervals of up to 25,000 miles/one year, whichever comes first (15,000 miles/one year in severe service conditions).

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Premium AMSOIL Synthetic Motor Oils offer the longest drain intervals on the market, unsurpassed protection and performance that effectively extends equipment life and improved fuel economy, saving customers money at the pump and reducing the nation's dependence on foreign oil.



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AMSOIL Synthetic Diesel Oil Articles and Testimonials

"AMSOIL INC. warrants that the use of its lubricants will not cause mechanical damage to any mechanically sound equipment when AMSOIL INC. products are used in full compliance with the company's recommendations and instructions."


AMSOIL synthetic motor oils are formulated to surpass engine test specifications, offering protection far greater than competing motor oils for extended drain intervals. Most synthetic oil manufacturers make no claim to extended drain intervals, deferring to the maintenance schedule provided by the vehicle manufacturer. With its unparalleled oil and warranty program, AMSOIL offers consumers unprecedented protection and economics.

Another AMSOIL First

More than 20 years ago, AMSOIL began using the NOACK volatility test as a comparison tool and measurement of quality. Back then, nearly every oil tested side-by-side with AMSOIL synthetic motor oils failed, and those that passed barely squeaked by. Other oil companies paid no attention to NOACK results until Ford Motor Company made it a requirement for service fill oils, validating what AMSOIL had said all along.

THE NOACK Volatility Test
The NOACK Volatility Test determines the evaporation loss of lubricants in high temperature service. The more motor oils vaporize, the thicker and heavier they become, contributing to poor circulation, reduced fuel economy and increased oil consumption, wear and emissions. AMSOIL Synthetic Motor Oil resists high temperature volatization better than other motor oils. AMSOIL Synthetic Motor Oil maintains peak fuel efficiency and reduces oil consumption and emissions.

AMSOIL Now An ISO Certified Manufacturer
AMSOIL recently received ISO 9001:2000 certification of our Quality Management System (QMS). NSF International Strategic Registrations is the registrar that has verified our QMS meets the requirements of the ISO 9001:2000 standard, the most widely utilized quality standard throughout the world for quality management systems. ISO standards are used by over 300,000 companies worldwide setting rigorous standards for businesses, government and industry.

ISO 9001:2000 is applicable to any manufacturing and service organization providing a framework for system development that focuses on the customer, quality system performance and ongoing improvement. AMSOIL received ISO 9001:2000 registration under the scope: synthetic lubricants blending, packaging, and other fulfillment directly associated with lubricant product.

The ISO certification puts AMSOIL in line with some of the most efficient companies in the world. It is further assurance that the products and services AMSOIL provides will continue to maintain the high level of quality the company always demanded.

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